Revised September 30, 2008October 05, 2007

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Revision History

Revision

Date

Comment

1.1

30-SEP-2008

Removed UMPIRE form and all references to the Upgrade Program.

1.0

05-OCT-2007

Initial Public Release

Products Affected

Products Affected

Comments

CSCO - CSCO-CNTRL-BRD(=)

74-3688-02

Problem Description

The version of the Controller board listed above was recently introduced containing a software change.

The Software change caused an issue where upon loss of AC power to a single rectifier in a redundant system, no system alarms are generated, and the AC/DC panel status LEDs fail to indicate the condition. The controller and rectifier do recognize the condition.

This only affects alarming. It does not affect the power system.

Background

A customer reported that their alarms were not working properly when one of the AC power feeds was removed from a redundant power system.

This issue was introduced during a recent cost reduction activity, when a new revision of software was implemented.

Problem Symptoms

The system fails to generate an AC Failure Alarm when a single AC power feed is removed from the shelf assembly. The AC/DC panel status LEDs will also fail to indicate the condition.

Workaround/Solution

There is no workaround for this issue. Cisco recommends a fix-on-fail strategy for this problem.

Service Logistics has known-good inventory at this time.

The standard RMA process and delivery times are in effect.

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered customer and you must be logged in.